calibration solution around the house?
- Thread starter HOHO
- Start date
born2killspam
Well-Known Member
Not really that I can think of.. Well distilled water is a safe 7.0, and tomato juice is usually pretty close to 4.1-4.2, but theres no point in going beyond droplet tests if you're going to calibrate like that..
I'll look into possible solutions using distilled water and common pills or something else standardized/replicable though..
There is a hole in your bucket for a diy solution though given the fact that you need a trustworthy reading to calibrate a solution to calibrate your meter..
I'll look into possible solutions using distilled water and common pills or something else standardized/replicable though..
There is a hole in your bucket for a diy solution though given the fact that you need a trustworthy reading to calibrate a solution to calibrate your meter..
Woomeister
Well-Known Member
Distilled vinegar 5% is exactly ph2.5 no matter what brand. Its what I have always used.
born2killspam
Well-Known Member
Vinegar isn't anymore trustworthy than tomato juice (usually 2.4-2.6), and its pH is further from our range..
The best place to ask would probably be sciencemadness.org, but don't talk about anything drug related there!
The best place to ask would probably be sciencemadness.org, but don't talk about anything drug related there!
born2killspam
Well-Known Member
Oh salt and distilled water then works pretty well.. 1.00g/L works out to 1000ppm and it scales.. IIRC, correlating EC to NaCl ppm in DH2O is the norm..
Woomeister
Well-Known Member
Distilled vinegar has to be PH 2.5 by law in the UK due to stupid EU laws so it is extremely reliable, so in future check your facts.
born2killspam
Well-Known Member
Ok dude, well I don't live in the UK.. I do supervise titration labs etc each and every semester and see first hand results that tell me I'm not wrong..
Regardless ppl buy pH solutions for a reason.. Most meters are more precise than 0.1..
Regardless ppl buy pH solutions for a reason.. Most meters are more precise than 0.1..
Woomeister
Well-Known Member
a precision of 0.1 is not necesarry in growing cannabis. All I was saying is Uk Distilled Vinegar is good to use and costs the equivalent of $0.25 for a litre, whereas buffer 7 costs $15 for 200ml.
born2killspam
Well-Known Member
I'd say accuracy of 0.1 is the necessity for this task, but droplet tests can achieve that.. Ppl with probes though should be aiming for a higher standard, thats why they dropped the $$$ on the probe in the first place..
Not using the good stuff is the equivalentof buying a giant tv and not upgrading to HD..
Not using the good stuff is the equivalentof buying a giant tv and not upgrading to HD..
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